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Old 03-09-2020, 04:14 PM
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Slawomir (Suavi)
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Join Date: Sep 2014
Location: North Queensland
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QSI 690 wsg-8 - Price reduced

Hi all,

A great camera, purchased directly from QSI in November 2014. In 2015 I sent the camera to QSI to get wsg-8 cover installed (I originally bought the camera as a slim version).

The camera has never failed and to my knowledge it works as it should. Read noise is 4e at -15C, dark current is virtually non-existent. It could go as low as -20 to -25C (40-45C below ambient), but I always operated the camera at -15C since camera noise is very low. No bad columns, no glow, some hot pixels.

This camera is so clean there is no need to calibrate with darks nor with bias. I tested that with my image of the Helix showing areas with signal from the nebula as weak as 1 photon per pixel per hour of exposure. Dark noise in a 15-minute exposure with the sensor at -15C (about 65% cooling power) is only about 0.2ADU.

Build-in OAG has an adapter that fits Lodestar, it also has additional OAG guide camera adapter for a larger diameter - I think it is a T-mount. Build-in filter wheel has 8 spaces for 1.25" filters.

The main camera has a spare T-mount adapter, as well as a 2" adapter and a canon adapter.

The filter wheel is currently loaded with 3nm Astrodons (Ha, OIII, SII and NII) and with Astrodon LRGB filters. . New Astrodon filters alone would cost 3k landed.

Camera without filters: $3500

Camera with filters: $4500

This includes insured domestic shipping with Australia Post.

Brand new camera costs about $7000 landed, with filters it would be about $10,000.

Some images taken with this camera:

https://astronomy.com/sitefiles/reso...688C6A51437%7D

https://www.abc.net.au/news/2018-05-...m-city/9783842

https://www.spacetelescope.org/proje...r_lipinski_07/

https://www.rmg.co.uk/whats-on/astro...rs-and-nebulae
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Last edited by Slawomir; 28-09-2020 at 09:04 AM. Reason: Clarity, added stretched bias and darks
  #2  
Old 26-09-2020, 02:27 PM
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Slawomir (Suavi)
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Slawomir is offline
 
Join Date: Sep 2014
Location: North Queensland
Posts: 3,240
Price reduced

Hi all,

Updated the price.

The camera with all the bits listed in the original post but without filters can be yours for $2600 posted domestically (insurance included). WSG-8 means a built-in 8-position filter wheel and an OAG.

With Astrodons I will let it go for $3600 posted domestically (insurance included).

Filters are: Ha, OIII, SII and NII, all 3nm Astrodons and a set of LRGB, also Astrodons. Those filters alone are $3k landed.

Reason for selling - in Whitsundays I only get a 3-month imaging window per year, if that. Moving onto visual astronomy for the time being.

Payments via bank transfer only.

First come, first serve.
 

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